Tanner, Ogden., author
Time-Life Books, 1978.
Buku Referensi
Brown, Jane, author
Thames & Hudson, 2000
Buku Referensi
Vance, Jack, author
Spatterlight Press, 2002
Buku Teks
Roy, Gabrielle, author
McClelland and Stewart, 1979
Buku Teks
Farrukh, OA
Beirut Al-Kashaf-Press 1952
Buku Teks